CURRENT MEDICINAL CHEMISTRY, vol. 10, no. 19, page. 1973 - 1991, 2003-10
SYNLETT, no. 12, page. 1838 - 1840, 2003-09-29
NUCLEIC ACIDS RESEARCH, vol. 31, no. 11, page. 2725 - 2734, 2003-06-01